public void HashMinLength_Decodes()
{
var hashids = new Hashids(salt, 8);
hashids.Decode("gB0NV05e").Should().Equal(new[] { 1 });
hashids.Decode("mxi8XH87").Should().Equal(new[] { 25, 100, 950 });
hashids.Decode("KQcmkIW8hX").Should().Equal(new[] { 5, 200, 195, 1 });
}
void it_can_decode_from_a_hash_with_a_minimum_length()
{
var h = new Hashids(salt, 8);
h.Decode("gB0NV05e").Should().Equal(new [] { 1 });
h.Decode("mxi8XH87").Should().Equal(new[] { 25, 100, 950 });
h.Decode("KQcmkIW8hX").Should().Equal(new[] { 5, 200, 195, 1 });
}
private void It_can_decode_from_a_hash_with_a_minimum_length()
{
var h = new Hashids(SALT, 8);
h.Decode("gB0NV05e").ShouldBe(new[] { 1 });
h.Decode("mxi8XH87").ShouldBe(new[] { 25, 100, 950 });
h.Decode("KQcmkIW8hX").ShouldBe(new[] { 5, 200, 195, 1 });
}
void it_does_not_decode_with_a_different_salt()
{
var peppers = new Hashids("this is my pepper");
hashids.Decode("NkK9").Should().Equal(new [] { 12345 });
peppers.Decode("NkK9").Should().Equal(new int [0]);
}
/// <summary>
/// 对ID进行解码
/// </summary>
/// <param name="hash">哈希值</param>
/// <returns>解密后的ID</returns>
public static int Decode(string hash)
{
var arr = _hashids.Decode(hash);
// 如果解析出的ID不存在，则得到一个空数组，这时候返回0
return(arr.Length > 0 ? arr[0] : 0);
}
public ValidationResult Validate(DeleteCommentModel instance)
{
var result = new ValidationResult {
IsValid = false
};
var hashIds = new Hashids(minHashLength: 5);
var commentId = hashIds.Decode(instance.HashId).FirstOrDefault();
if (commentId == 0)
{
result.Messages.Add("Invalid comment id.");
return(result);
}
var comment = DbContext.Comments.FirstOrDefault(c => c.Id == commentId);
if (comment == null)
{
result.Messages.Add("Invalid comment id.");
return(result);
}
if (comment.UserId != instance.UserId)
{
result.Messages.Add("You are not the owner of this comment.");
return(result);
}
result.IsValid = true;
return(result);
}
public IActionResult Index(string id)
{
var linkId = 1;
var url = UrlPrefix;
try
{
var linkIds = _hashId.Decode(id);
if (linkIds.Length > 0)
{
linkId = linkIds[0];
}
using var db = new LiteDatabase("persistence/linkshortener.db");
var col = db.GetCollection <LinkModel>("links");
var foundLink = col.FindOne(c => c.Id == linkId);
if (foundLink != null)
{
url = foundLink.RedirectTargetUrl;
}
} catch (Exception ex)
{
_logger.LogWarning("Could not resolve hashid to integer", ex);
}
return(RedirectPermanent(url));
}
public long Decrypt(string encryptedId)
{
if (string.IsNullOrEmpty(encryptedId))
{
throw new BusinessException <CommonErrorType>(CommonErrorType.NullArguments);
}
encryptedId = encryptedId?.Trim();
int[] result;
try
{
result = hashids.Decode(encryptedId);
}
catch (Exception)
{
throw new BusinessException <EncryptionErrorType>(EncryptionErrorType.ErrorInDecryption);
}
if (result == null || result.Length != 1)
{
throw new BusinessException <EncryptionErrorType>(EncryptionErrorType.ErrorInDecryption);
}
return(result[0]);
}
public async Task <StoryViewModel> Get(string hashId, Guid?userId)
{
var ids = new Hashids(minHashLength: 5);
var storyId = ids.Decode(hashId).First();
var story = await StoriesDbContext.Stories.Include(s => s.User)
.Include(s => s.Comments)
.SingleOrDefaultAsync(s => s.Id == storyId);
if (story == null)
{
return(null);
}
var userUpvoted = userId != null && await StoriesDbContext.Votes.AnyAsync(v => story.Id == v.StoryId && v.UserId == userId);
var model = new StoryViewModel
{
Summary = MapToStorySummaryViewModel(story, hashId, userId, userUpvoted)
};
var upvotedComments = await StoriesDbContext.Votes.Where(v => v.CommentId != null && v.UserId == userId)
.Select(v => (int)v.CommentId)
.ToListAsync();
foreach (var comment in story.Comments.OrderByDescending(c => c.Score?.Value).Where(c => c.ParentCommentId == null))
{
model.Comments.Add(MapCommentToCommentViewModel(comment, upvotedComments));
}
return(model);
}
public async Task <bool> Delete(string hashId)
{
var ids = new Hashids(minHashLength: 5);
var storyId = ids.Decode(hashId).First();
if (storyId == 0)
{
return(false);
}
var story = await StoriesDbContext.Stories.Include(s => s.Comments)
.Where(s => s.Id == storyId)
.FirstOrDefaultAsync();
if (story == null)
{
return(false);
}
foreach (var comment in story.Comments)
{
StoriesDbContext.Votes.RemoveRange(comment.Votes);
}
StoriesDbContext.Comments.RemoveRange(story.Comments);
StoriesDbContext.Stories.Remove(story);
return(await StoriesDbContext.SaveChangesAsync() > 0);
}
public static int Decode(string encoded)
{
var hashids = new Hashids(salt);
var link = hashids.Decode(encoded);
return(link[0]);
}
public static string Decode(string encodedText)
{
var hashIds = new Hashids("LotusInn");
var intArr = hashIds.Decode(encodedText);
return(Encoding.UTF8.GetString(intArr.Select(i => (byte)i).ToArray()));
}
private void It_does_not_decode_with_a_different_salt()
{
var peppers = new Hashids("this is my pepper");
_hashids.Decode("NkK9").ShouldBe(new[] { 12345 });
peppers.Decode("NkK9").ShouldBe(new int[0]);
}
private void button2_Click_1(object sender, EventArgs e)
{
using (MySqlConnection cn = new MySqlConnection(_myconnectionstring))
{
string idClear = textBox1.Text;
int intId;
string sql = null;
int idHashKonvertert;
if (textBox1.Text == string.Empty)
{
MessageBox.Show(@"Du må taste inn noe!");
return;
}
if (int.TryParse(idClear, out intId))
{
sql = "DELETE FROM booking WHERE bookingId=" + intId;
}
else
{
var hashids = new Hashids("Tralalalalala, dette er min SALT");
int[] idHash = hashids.Decode(idClear);
try
{
idHashKonvertert = idHash[0];
}
catch (Exception exception)
{
idHashKonvertert = 9999999;
}
sql = "DELETE FROM booking WHERE bookingId=" + idHashKonvertert;
}
MySqlCommand cmd = new MySqlCommand();
cmd.Connection = cn;
cmd.CommandText = sql;
cn.Open();
int numRowsUpdated = cmd.ExecuteNonQuery();
cmd.Dispose();
if (numRowsUpdated == 1)
{
MessageBox.Show("Booking med id/ref: " + idClear +
" ble slettet. Applikasjonen vil nå laste på nytt");
Hide();
HotelBookForm hotelBookForm = new HotelBookForm();
hotelBookForm.Closed += (s, args) => Close();
hotelBookForm.Show();
}
else
{
MessageBox.Show("Fant ingen booking med inntastet id eller ref nummer");
}
}
}
public CompanyDescriptionsMapper()
{
CreateMap <CompanyDescriptions, CompanyDescriptionsDto>()
.ForMember(d => d.Id, m => m.MapFrom(e => _hash.Encode(e.Id)));
CreateMap <CompanyDescriptionsDto, CompanyDescriptions>()
.ForMember(e => e.Id, m => m.MapFrom(d => _hash.Decode(d.Id)));
}
public IActionResult ViewGradeSet(string hashId)
{
var hashid = new Hashids("gwa-calc-server");
var gradeSetId = hashid.Decode(hashId)[0];
var grades = _ctx.Grades.Where(x => x.GradeSetId == gradeSetId).ToList();
return(View(grades));
}
public void GuardCharacterOnly_DecodesToEmptyArray()
{
// no salt creates guard characters: "abde"
var hashids = new Hashids("");
var decodedValue = hashids.Decode("a");
decodedValue.Should().Equal(Array.Empty <int>());
}
public void CustomAlphabet2_Roundtrip()
{
var hashids = new Hashids(salt, 0, "ABCDEFGHIJKMNOPQRSTUVWXYZ23456789");
var input = new[] { 1, 2, 3, 4, 5 };
hashids.Encode(input).Should().Be("44HYIRU3TO");
hashids.Decode(hashids.Encode(input)).Should().BeEquivalentTo(input);
}
void issue_15_it_should_return_emtpy_array_when_decoding_characters_missing_in_alphabet()
{
var hashids = new Hashids(salt: "Salty stuff", alphabet: "qwerty1234!¤%&/()=", seps: "1234");
var numbers = hashids.Decode("abcd");
numbers.Length.Should().Be(0);
var hashids2 = new Hashids();
hashids.Decode("13-37").Length.Should().Be(0);
hashids.DecodeLong("32323kldffd!").Length.Should().Be(0);
var hashids3 = new Hashids(alphabet: "1234567890;:_!#¤%&/()=", seps: "!#¤%&/()=");
hashids.Decode("asdfb").Length.Should().Be(0);
hashids.DecodeLong("asdfgfdgdfgkj").Length.Should().Be(0);
}
public void CustomAlphabet_Roundtrip()
{
var hashids = new Hashids(salt, 0, "ABCDEFGhijklmn34567890-:");
var input = new[] { 1, 2, 3, 4, 5 };
hashids.Encode(input).Should().Be("6nhmFDikA0");
hashids.Decode(hashids.Encode(input)).Should().BeEquivalentTo(input);
}
public UsersMapper()
{
CreateMap <User, UserDto>()
.ForMember(d => d.Id, m => m.MapFrom(e => _hash.Encode(e.Id)));
CreateMap <UserDto, User>()
.ForMember(e => e.Id, m => m.MapFrom(d => _hash.Decode(d.Id)));
}
public void SaltIsLongerThanAlphabet_Roundtrip()
{
var longSalt = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
var hashids = new Hashids(salt: longSalt);
var input = new[] { 1, 2, 0 };
var decodedValue = hashids.Decode(hashids.Encode(input));
decodedValue.Should().Equal(input);
}
protected void Button1_Click(object sender, EventArgs e)
{
_myconnectionstring = "Database=Test; Data Source = localhost; User = test; Password = test";
if (TextBox1.Text == string.Empty || TextBox2.Text == string.Empty)
{
Label3.Text = @"Du må taste inn både fornavn og etternavn!";
return;
}
if (Calendar1.SelectedDate < DateTime.Now.Date)
{
Label3.Text = @"Fra dato kan ikke være før dagens dato!";
return;
}
if (Calendar2.SelectedDate < Calendar1.SelectedDate)
{
Label3.Text = @"Du kan ikke velge en til dato som er tidligere enn fra dato!";
return;
}
try
{
using (MySqlConnection cn = new MySqlConnection(_myconnectionstring))
{
var sql = "INSERT INTO booking (fornavn, etternavn, datoFra, datoTil) VALUES(" + '"' + TextBox1.Text +
'"' + "," + '"' + TextBox2.Text + '"' + "," + '"' +
Calendar1.SelectedDate.ToString("yyyy-MM-dd") + '"' + "," + '"' +
Calendar2.SelectedDate.ToString("yyyy-MM-dd") + '"' + ")";
MySqlCommand cmd = new MySqlCommand();
cmd.Connection = cn;
cmd.CommandText = sql;
cn.Open();
int numRowsUpdated = cmd.ExecuteNonQuery();
int bid = (int)cmd.LastInsertedId;
cmd.Dispose();
TextBox1.Text = string.Empty;
TextBox2.Text = string.Empty;
Calendar1.SelectedDates.Clear();
Calendar2.SelectedDates.Clear();
var hashids = new Hashids("Tralalalalala, dette er min SALT");
var id = hashids.Encode(bid);
var numbers = hashids.Decode(id);
Label3.Text = "Takk! Bookingen ble registrert. </br> Din bookingreferanse er \"" + id + "\". </br>Benytt denne for å kansellere bestillingen";
}
}
catch
{
Console.WriteLine(@"Error: DB not updated!");
}//TextBox1.Text = Calendar1.SelectedDate.ToString("yyyy-M-dd");
}
public static int DecodeSeedValue(string hash)
{
if (String.IsNullOrEmpty(hash) || String.IsNullOrWhiteSpace(hash))
{
throw new ArgumentException("Hash cannot be null, empty or white spaces");
}
int[] decodedValueDigits = hashIds.Decode(hash);
return(JoinDigitArray(decodedValueDigits));
}
public CompaniesMapper()
{
CreateMap <Company, CompanyDto>()
.ForMember(d => d.Id, m => m.MapFrom(e => _hash.Encode(e.Id)));
//.ForMember(d => d.Test, m => m.MapFrom(e => RoleHelper.Role != "Admin" ? e.Test : null));
CreateMap <CompanyDto, Company>()
.ForMember(e => e.Id, m => m.MapFrom(d => _hash.Decode(d.Id)));
}
public void AddLink(Link link)
{
var hashids = new Hashids(link.FullLink);
var id = hashids.Encode(1, 2, 3);
var numbers = hashids.Decode(id);
link.ShortLink = id;
link.Id = _context.Links.Count();
_context.Add(link);
_context.SaveChanges();
}
public int?HashDecodeId(string hashValue)
{
try
{
return(hashids.Decode(hashValue).First());
}
catch (Exception)
{
return(null);
}
}
/// <summary>
/// 从将Id藏起来到给定的Guid中;返回解密后的Id;
/// 如果传入为空字符串，则返回 0；注意，不是空，而是 0;
/// </summary>
/// <param name="cryptIntString"></param>
/// <param name="typeName">类型,如果传入null,则解密时不进行类型校验;</param>
/// <param name="debug"></param>
/// <returns></returns>
public static int DecryptIdInGuid(string cryptIntString, string typeName, bool debug = false)
{
if (string.IsNullOrEmpty(cryptIntString))
{
return(0);
}
if (cryptIntString.Length < 32)
{
Hashids hashids = GetHashids(typeName);
var ids = hashids.Decode(cryptIntString);
if (ids == null || ids.Length == 0)
{
return(0);
}
return(ids[0]);
}
int typeHash = 0;
if (!string.IsNullOrEmpty(typeName))
{
typeHash = Math.Abs(typeName.GetHashCode());
}
if (string.IsNullOrEmpty(cryptIntString))
{
return(0);
}
if (cryptIntString.Length < 32)
{
return(0);
}
var bytes = cryptIntString.ToCharArray();
var beginPos = System.Convert.ToInt32(new string(new char[] { bytes[bytes.Length - 1] }), 16);
var len = System.Convert.ToInt32(new string(new char[] { bytes[beginPos + 11] }), 16);
var sub = cryptIntString.Substring(beginPos, len);
long subLong = System.Convert.ToInt64(sub, 16);
var id = (int)(subLong / 135721L);
if (!string.IsNullOrEmpty(typeName) && CryptIdInGuid(id, typeName) != cryptIntString || debug)
//不能验证，因为在 Ehay 和 EhayDataHandle 会产生不同的 GuidList;
//悲催的是， 反序列化时， Newtonsoft.Json.JsonConvert.DeserializeObject<EH_DeviceInfo>(keyContent)
//在 IdEntity 中无法获取到正确的 EH_DeviceInfo 类型，
{
var crcString = cryptIntString.Substring(28, 3);
CryptIdInGuid(id, typeName, true);
// LogUtil.xLogUtil.Warn(
//"加解密异常:解密过程:{1}{2}type:{3}{2}typeHash:{4}{2}beginPos:{5}{2}len:{6}{2}sub:{7}{2}subLong:{8}{2}crcString:{9}{2}id:{0}",
// null,
// id, cryptIntString, Environment.NewLine, typeName, typeHash, beginPos, len, sub, subLong, crcString);
// throw new Exception("错误的解密字符串");
}
return(id);
}
public static int FromEncodedId(this string id)
{
try
{
return(Hashids.Decode(id).FirstOrDefault());
}
catch
{
return(-1);
}
}
public async Task <CommentViewModel> Get(string hashId)
{
var hashIds = new Hashids(minHashLength: 5);
var comment = await StoriesDbContext.Comments.FindAsync(hashIds.Decode(hashId).FirstOrDefault());
if (comment == null)
{
return(null);
}
return(await MapCommentToCommentViewModel(comment));
}
void it_does_not_decode_with_a_different_salt()
{
var peppers = new Hashids("this is my pepper");
hashids.Decode("NkK9").Should().Equal(new []{ 12345 });
peppers.Decode("NkK9").Should().Equal(new int [0]);
}
void it_can_decode_from_a_hash_with_a_minimum_length()
{
var h = new Hashids(salt, 8);
h.Decode("gB0NV05e").Should().Equal(new [] {1});
h.Decode("mxi8XH87").Should().Equal(new[] { 25, 100, 950 });
h.Decode("KQcmkIW8hX").Should().Equal(new[] { 5, 200, 195, 1 });
}
void issue_8_should_not_throw_out_of_range_exception()
{
var hashids = new Hashids("janottaa", 6);
var numbers = hashids.Decode("NgAzADEANAA=");
}
